Means for fastening an object upon a support especially intended for gyroscope firing devices



3a 236. m 194969390 r a! June 3 1924. 1,496,399 H. SUNDHAUSSEN MEANS FOR FASTENING AN OBJECT UPON A SUPPORT ESPECIALLY INTENDED FDR GYROSCOPE FIRING DEVICES Filed Jan. 15 1921 Fig.4.

managem- E93. (){EiOMETRHQAL iNSTRUhfiEN Patented June 3, 1924.

UNITED STATES U] ananzuu PATENT OFFICE.

HERMANN SUNDHAUSSEN, OF ESSEN, GERMANY, ASSIGNOR TO FRIED. KRUPP AK- TIENGESELLSCHAFT, OF ESSEN-ON-THE-EUHR, GERMANY.

MEANS FOR FASTENING AN OBJECT UPON A SUPPORT ESPECIALLY INTENDED FOR GYROSCOPE FIRING DEVICES.

Serial No. 437,605.

(GRANTED UNDER THE PROVISIONS OF THE ACT OF MARCH 3, 1921. 41 STAT. L, 1313.)

T 0 all whom it may concern.

Be it known that 1, TTERMANN SUND1-IAUS- SEN, residing at Essen, Germany, a citizen of the German Republic, have invented a certain new and useful Improvement in Means for-Fastening an Object upon a Support Especially Intended for Gyroscope Firing Devices (for which I have filed an application in Germany, filed May 3rd, 1916), of which the following is a specification.

This invention relates to a means for fastening an object upon a support and is more particularly intended for use in connect on with a gyroscope firing device and which will enable an accurate and invariable seat to be secured for the object on its support even in the event of certain parts of the fastening means coming to wear down, and which, in addition, admit of the objects being quickly fixed on and removed from, its support.

In the drawing accompanying thls specification and forming part thereof, a gyroscope firing apparatus embodying the present invention is illustrated by way of example. In the drawing:

Fig. 1 is a side elevation, partly in section, of the parts in question of the firing apparatus,

Fig. 2 is a section on line 2-2 in Fig. 1, looking from the left, with certain parts in different working positions.

Referring to this drawing, A denotes the gyroscope casing, B the telescope sight mounted on the axis 6 to be stabilized by the gyroscope-not shown-while C indicates the cradle in which the casing A is adapted to repose. The position of the cas ing A within the cradle C is determined Icy horizontal seating surfaces a 0 as well as by two oppositely disposed pairs of vertical stop faces a 0 of which, however, only one pair is shown in the drawing. At the bottom of the casing A there is arranged a downwardly inclined eye a which a hook d mounted on a hollow cylindrical shank D displaceably lodged within a tubular 8X- tension C of the cradle C, is adapted to engage, and this in such wise that a face (Z of the hook (Z will come to bear up against the eye a said face being inclined as shown in Fig. 1 at an angle of 45 relatively to the horizontal plane. Within said hollow cylindrical shank D there is located a piston F (Fig. 1) subject to the action of a spring E, and the rod F of which forms, outside of the shank D, a rack bar F Vith this rack bar F there gears a toothed arc Gr, pivoted within a double eye 0* provided onthe extension C and rigidly connected to a hand lever H. This latter is fitted with .a resilient pin 72. adapted for its part to engage two notches o and 0 arranged, on a sector-shaped eX- tension 0 of the double eye 0, at an angle of 90 relatively to each other. In addition, the hand lever H is provided with an opaque screen if which, when the hand lever H assumes a certain position, will be disposed within the field of view of the telescope sight B.

Before the casing A is inserted into the cradle C, the lever H is shifted into the position denoted in dash-and-dot lines in Fig. 1, and in which the resilient pin b comes to engage the notch 0 as shown more clearly in Fig. 2, the hook (Z likewise reaching the position indicated in dashand-dot lines in Fig. 1. The casing A being now inserted in the cradle C in such a manner that the seating faces a 0 and the stop faces a 0 will come to bear up against each other, then the pin k is withdrawn from the notch c and the lever H rotated in the direction marked by the arrow 00 (Fig. 1). By the intervention of the toothed arc Gr the motion carried out by said lever is transmitted to the rack bar F and thus a displacement of the piston F in the sense indicated by the arrow y (Fig. 1) is provoked. Acting under the impulse of the spring E, the shank D together with the hook (Z follow this shift motion. When the lever H has now attained the position shown in full lines in Fig. 1, the surface (Z of the hook (Z comes to bear up against the eye a As the lever continues to rotate in the direction indicated by the arrow :0, the spring E is compressed by the piston F. The lever H will now be turned until the pin k comes to engage the notch 0. Owing to the pressure exerted by the spring E, the hook (Z exerts a strong pull on the eye a and therewith on the casing A. As the surface (Z of the hook (Z is disposed, as shown in Fig. 1, at an angle of L5 relatively to the horizontal plane, an oblique, downwardly directed force will come to act on the casing A tending to shift said casing uniformly both in a perpendicular and a horizontal direction and thus forcing it firmly down on the seating faces 0 and against the stop faces 0 If, therefore, the face (I or the eye (6 come to be worn down at their contacting faces, then, notwithstanding this wear, the de scribed fastening means will remain fully effective, since owing to the action of the spring E, the surface (Z even in case of considerable wear, will be firmly forced up against the eye a. As long as the lever H has not been turned in the direction denoted by the arrow 0; beyond the position shown in full lines, the screen 71 will remain within the field of view of the telescope B and will hide this latter. As a result, on the lever H being in this position which corresponds to a non-secured and therefore readily faulty position of the casing A, no sighting operation can be carried out. However, this position will always be assumed by the lever H, owing to the action of the spring E, unless the pin it happens to engage the notch 0 i. e. the casing A be firmly secured in its position within the cradle G.

The manner of operation when lifting the casing A out of the cradle C will be readi- 1y understood after the foregoing description and requires no further explanation. It may only be noted that both the fixing of the object upon its support as also the releasing of the fastening means may be quickly effected by aid of a few manipulations only.

Claims:

1. Means for fastening an object on its support comprising a movable holder, a tension spring acting on said holder, said holder being carried by one of the parts to be interconnected, and manually operated means for tensioning said spring.

2. Means for fastening an object on its support comprising a movable holder secured to one of the parts to be interconnected, a spring engaging said holder and mechanical means for tensioning said spring.

3. In a fastening means of the character described two parts to be interconnected provided with cooperating seating faces, stops secured to said parts and provided with cooperating stop faces, movable fastening means carried by one of said parts and engaging the other part and means for putting said fastening means under tension.

4. In a fastening means, an object and a support to be interconnected, said object and support being formed with cooperating seating and stop faces, an eye carried by one of said aarts to be interconnected, a holder provide with a hook carried by the other of said parts, the face of said hook engaging said eye being disposed at an acute angle relatively to its longitudinal axis.

5. ln a -fastenin 1nean s ,for-gyroscope figingapparatus'the combination with a telescope and a casing supporting said telescope and provided with a bearing and stop face of a cradle provided with cooperating hearing and stop faces, an eye carried by said casing, a holder provided with a hook engaging said eye, a spring engaging said holder, a gear and lever means for tensioning said spring to secure the parts in interconnected position, a screen carried by said lever and disposed so as to be within the field of View of the telescope when the parts are in disconnected position.

The foregoing specification signed at Essen, Germany, this 8th day of December,

HER-MANN SUNDHAUSSEN. In presence of HANS GOTTSMANN, J OHANN DEOKERS. 

